Radius x 2 x 3.14 = Area
* * * * *
That is the formula for the circumference!
The area = pi*radius2
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The area of a circle is: pi times radius squared
The circumference and area of a circle, with radius r is: circumference = 2*pi*r and area = pi*r2 Use the first to calculate r and then the second to calculate the area.
We can calculate the area of a circle by using the formula areacircle pi times r2. We know that pi is about 3.14 and r is the radius of the circle. Πr2 Where: Π pi (3.14159265...) r radius of circle
a=3.14xradius squared
Area= Pi r squared